Philip S Dale Author

Larry Fenson is Professor of Psychology at San Diego State University. Virginia A. Marchman is Research Associate at Stanford University. Donna Thal is Professor of Speech, Language, and Hearing Sciences at San Diego State University. Philip S. Dale is Professor of Health Related Professions at the University of Missouri at Columbia. Elizabeth Bates was Professor of Psychology and of Cognitive Science at the University of California. J. Steven Reznick is Professor and Director of the Developmental Program at the University of North Carolina.